package com.xbfinal.reggie.config;

import com.xbfinal.reggie.common.JacksonObjectMapper;
import lombok.extern.slf4j.Slf4j;
import org.springframework.context.annotation.Configuration;
import org.springframework.http.converter.HttpMessageConverter;
import org.springframework.http.converter.json.MappingJackson2HttpMessageConverter;
import org.springframework.web.servlet.config.annotation.ResourceHandlerRegistry;
import org.springframework.web.servlet.config.annotation.ViewControllerRegistry;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurationSupport;

import java.util.List;


@Configuration
public class WebMvcConfig extends WebMvcConfigurationSupport {
    /**
     * 设置静态类资源映射
     * @param registry
     */
    @Override
    protected void addResourceHandlers(ResourceHandlerRegistry registry) {
        //使用 registry来设置访问路劲
        registry.addResourceHandler("/backend/**")
                .addResourceLocations("classPath:/backend/");
        registry.addResourceHandler("/front/**")
                .addResourceLocations("classPath:/front/");
    }

    /**
     * 扩张MVC消息的转换器
     * @param converters
     */
    @Override
    protected void extendMessageConverters(List<HttpMessageConverter<?>> converters) {
        //创建消息转换器对象
        final MappingJackson2HttpMessageConverter MessageConverter
                = new MappingJackson2HttpMessageConverter();

        //设置对象转换器
        MessageConverter.setObjectMapper(new JacksonObjectMapper());

        //将上面的消息转换器追加到mvc框架的转换器集合中
        converters.add(0,MessageConverter);//追加到最前面优先使用
    }
}
